661
FZUS63 KDTX 190741
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
341 AM EDT Wed Aug 19 2026

For waters beyond five nautical miles off shore on Lake Huron

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...High pressure, 30.00 inches, builds in tonight and
Thursday providing light winds. Showers and thunderstorm chances
increase Friday evening and especially Saturday ahead of the next
cold front.

LHZ361-191545-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
341 AM EDT Wed Aug 19 2026

.TODAY...West winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. Waves 2 feet or less.
.TONIGHT...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. Waves 2 feet or less.
.THURSDAY...Light and variable winds. Waves 2 feet or less.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots veering to the
south in the late evening and overnight. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon. A chance of showers in the
morning. Rain showers likely. A chance of thunderstorms late in
the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in
the afternoon.
.SATURDAY...Southwest winds 5 to 10 knots veering to the west in
the late morning and early afternoon...then becoming northwest
10 to 15 knots early in the evening increasing to 15 to 20 knots
by midnight. Showers likely and a chance of thunderstorms early
in the morning...then a chance of showers until early evening.
Waves 1 to 3 feet building to 3 to 5 feet .
.SUNDAY...Northwest winds 15 to 20 knots. Gusts to 35 knot gales.
Waves 4 to 6 feet. Waves occasionally around 8 feet.


$$

LHZ362-363-191545-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
341 AM EDT Wed Aug 19 2026

.TODAY...Northwest winds 5 to 10 knots until late afternoon
becoming light and variable. Waves 1 to 3 feet.
.TONIGHT...North winds 5 to 10 knots in the evening becoming
light and variable...then becoming north 5 to 10 knots early in
the morning. Waves 2 feet or less.
.THURSDAY...Light and variable winds. Waves 2 feet or less.
.THURSDAY NIGHT...East winds 5 to 10 knots veering to the
southeast after midnight. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots. A chance of showers late in
the afternoon. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY...Southwest winds 5 to 10 knots becoming west 10 to
15 knots early in the evening...then becoming northwest 15 to
20 knots by midnight. Showers likely early in the morning. A
chance of thunderstorms in the late morning and early afternoon...
then a chance of showers . Waves 1 to 3 feet building to 3 to
5 feet .
.SUNDAY...Northwest winds 15 to 20 knots. Gusts to 30 knots .
Waves 5 to 7 feet. Waves occasionally around 10 feet.


$$

LHZ462>464-191545-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
341 AM EDT Wed Aug 19 2026

.TODAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Light and variable winds. Waves 2 feet or less.
.THURSDAY...Light and variable winds becoming north 5 to 10 knots
early in the afternoon. Waves 2 feet or less.
.THURSDAY NIGHT...North winds 5 to 10 knots veering to the
southeast after midnight. Waves 2 feet or less.
.FRIDAY...Southeast winds 5 to 10 knots increasing to 10 to
15 knots. A chance of showers late in the evening. Waves 1 to
3 feet.
.SATURDAY...South winds 5 to 10 knots veering to the southwest in
the late morning and early afternoon...then veering to the west
early in the evening becoming northwest 10 to 15 knots by
midnight. Showers likely early in the morning. A chance of
thunderstorms. A chance of showers . Waves 1 to 3 feet building
to 3 to 5 feet by midnight.
.SUNDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. A chance of showers. Waves 4 to 6 feet.
Waves occasionally around 8 feet.


$$

LHZ461-191545-
MAFOR 1909/
HURON NORTH 16700. Waves 2 feet or less.

HURON SOUTH 14800 12100 12800. Waves 2 feet or less.

$$

SF

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftable (all lower case)

Graphical marine forecasts are available online at
weather.gov/greatlakes (all lower case)